English

gyroparallelogram

From gyro- + parallelogram.

Proto-Indo-European *gew- ‘to curve, to bend’

Ancient Greek γῦρος ‘circle’

English gyro-

Latin parallelogrammum

Today it means

noun A hyperbolic quadrilateral whose two gyrodiagonals intersect at their gyromidpoints, analogous to a parallelogram in Euclidean space.

Language periods are conventional ranges, not dates for this word.

Etymograph / gyroparallelogram